# A vs Dou

The clearest difference is in-app purchases: A at none against Dou's 2. A also leads on ads (none vs shown). Dou's advantage is update cadence (every 6 months vs every 70 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Dou sells 2 in-app purchases, starting at $0.99 per month. A asks for nothing beyond the download.

A ships an update every 70 months, Dou every 6 months. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | A | Dou |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/a-shape/id608284732/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 70 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 24 MB | 93 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Johannes Dwiartanto](https://appshunter.io/developer/471738677) | [App Dexter Limited](https://appshunter.io/developer/1834824416) |

## What reviewers say

### A

[App page](https://appshunter.io/ios/app/a-shape/id608284732)

Create unique geometric shapes through iterative affine transformations. Apply translations, rotations, and scaling to various objects with gradient coloring to generate visually interesting results.

**Highlights:** Affine transformation for shape creation, Translation, rotation, and scaling, Gradient coloring, Supports circles, rectangles, stars, polygons, and lines, Iterative shape generation

**In-app purchases:** none


### Dou

[App page](https://appshunter.io/ios/app/dou-couple-home-widget/id6762944509)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dou Plus Monthly | $0.99 | per month |
| Dou Plus Yearly | $9.99 | per year |


## Frequently asked questions

### Is A free?

A is free to download, with no in-app purchases.

### Is Dou free?

Dou is free to download, with in-app purchases available.

### Do A or Dou have ads?

Dou shows ads; A does not.

### Which is updated more often, A or Dou?

A ships an update every 70 months, and Dou every 6 months. Most recently, A was updated on November 1, 2026 and Dou on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*